Template:Windle1940 table1

From Embryology
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Table 1 Tissues and Substances Separating Fetal from Maternal Blood in Five Types of Placentas
Type of placenta Epithelio-chorial Syndesmo-chorial Endothelio-chorial Hemo-chorial Hemo-endothelial
Maternal tissue:
Endothelium + + + - -
Connective + + - - -
Epithelium + - - - -
Uterine milk or pablum + + - - -
Fetal tissue:
Chorion + + + + -
Mesenchyme + + + - -
Endothelium + + + + +
Examples Horse, swine Cattle, sheep cat, dog Man, monkey rabbit, guinea pig, rat